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Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

Electro-optic modulation of single photons.

Pavel Kolchin¹, Chinmay Belthangady, Shengwang Du

¹Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USA. pkolchin@stanford.edu

Physical Review Letters

|October 15, 2008

Summary

This summary is machine-generated.

Researchers precisely control single photons using entangled biphoton pairs. This technique enables arbitrary phase and amplitude modulation for advanced quantum applications.

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Area of Science:

Quantum optics
Photonics
Quantum information science

Background:

Entangled photon pairs, specifically biphotons, are crucial resources in quantum information.
Precise control over single-photon properties is essential for developing quantum technologies.

Purpose of the Study:

To establish a method for arbitrary phase and amplitude modulation of single-photon wave functions.
To demonstrate the generation of tailored single-photon wave function shapes.

Main Methods:

Utilizing the Stokes photon of a biphoton pair to define a precise time origin.
Applying electro-optic modulation to the wave function of the correlated anti-Stokes photon.
Demonstrating conditional wave function preparation.

Main Results:

Achieved arbitrary phase and amplitude modulation of the anti-Stokes photon's wave function.
Successfully generated conditional single-photon wave functions with controllable shapes.
Demonstrated the creation of wave functions composed of multiple pulses, as well as Gaussian and exponential shapes.

Conclusions:

The proposed method offers a robust way to engineer single-photon states.
This technique is vital for advancing quantum communication and quantum computing.
Precise control over photon wave functions opens new avenues in quantum manipulation.